O2 sensor heater wires
#3
At the connector underneath the passenger side floor mat. Heater wires get no power and the sensor wires stays constant at about .45 volts. They were not disconnected when I tested it and the car was running and warmed up.
#5
0095429317
I'm pretty sure that's the part number. My car is a 1990 300E. Those connectors are located underneath the passenger side floor mat and that's where I tested the volts.
I'm pretty sure that's the part number. My car is a 1990 300E. Those connectors are located underneath the passenger side floor mat and that's where I tested the volts.
#6
Out Of Control!!
FYI the part number(not a VIN)you provided is not for you car--that part is for a 300SE or 300SEL---be careful in what you are doing
Last edited by Plutoe; 02-19-2015 at 01:15 PM. Reason: corrected based on VIN
#7
Are you sure that's not the correct part? I'm pretty sure that's the same thing as the Bosch 13146 which is the oem part.
I am aware I gave a part number to you and not a VIN. Yes I know what a VIN is. It has both numbers and letters in it. From looking at the numbers you gave I assume you want the model and engine numbers though.
Those numbers are 124.030 and 103.983
I am aware I gave a part number to you and not a VIN. Yes I know what a VIN is. It has both numbers and letters in it. From looking at the numbers you gave I assume you want the model and engine numbers though.
Those numbers are 124.030 and 103.983
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#8
Out Of Control!!
Yes I am sure the part number you provided is not for the car you think you drive---that is why most folks who offer help will request a VIN repeat a VIN not a part number to confirm!!
#11
Out Of Control!!
After spending to much time on this, my belief is that the O2 heating voltage comes from the fuel pump relay---However after looking at the KE3 mixture info and your test(an open-no voltage) I simply believe that you have a faulty O2 sensor.